Answer
See below.
Work Step by Step
$B=180-47-32=101^\circ$.
Using the law of sines, $\frac{a}{\sin47^\circ}=\frac{12}{\sin32^\circ}\\a=\frac{12\sin47^\circ}{\sin32^\circ}\approx16.56$
$\frac{b}{\sin101^\circ}=\frac{12}{\sin32^\circ}\\b=\frac{12\sin101^\circ}{\sin32^\circ}\approx22.23$
